/*******************************************************************************
 * Copyright 2007-2014 FZI, http://www.fzi.de
 *                 Forschungszentrum Informatik - Information Process Engineering (IPE)
 *  
 *                 See the NOTICE file distributed with this work for additional
 *                 information regarding copyright ownership
 *                
 *                 Licensed under the Apache License, Version 2.0 (the "License");
 *                 you may not use this file except in compliance with the License.
 *                 You may obtain a copy of the License at
 *                
 *                   http://www.apache.org/licenses/LICENSE-2.0
 *                
 *                 Unless required by applicable law or agreed to in writing, software
 *                 distributed under the License is distributed on an "AS IS" BASIS,
 *                 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *                 See the License for the specific language governing permissions and
 *                 limitations under the License.
 * @author tzentek - <a href="mailto:zentek@fzi.de">Tom Zentek</a>
 * @author cyumusak - <a href="mailto:canyumusak@gmail.com">Can Yumusak</a>
 ******************************************************************************/
package de.fzi.fhemapi.view.vaadin.ui;

import java.util.List;

import com.vaadin.annotations.AutoGenerated;
import com.vaadin.data.Property;
import com.vaadin.data.Property.ValueChangeEvent;
import com.vaadin.ui.AbstractComponent;
import com.vaadin.ui.Alignment;
import com.vaadin.ui.Button;
import com.vaadin.ui.Button.ClickEvent;
import com.vaadin.ui.ComboBox;
import com.vaadin.ui.CustomComponent;
import com.vaadin.ui.HorizontalLayout;
import com.vaadin.ui.Label;
import com.vaadin.ui.TextField;
import com.vaadin.ui.VerticalLayout;

import de.fzi.fhemapi.model.devicetypes.Device;
import de.fzi.fhemapi.model.devicetypes.OnOffActuator;
import de.fzi.fhemapi.server.core.DeviceFactory;
import de.fzi.fhemapi.view.vaadin.ui.core.DevicePanelManager;
import de.fzi.fhemapi.view.vaadin.ui.model.DeviceDetailEntry;

/**
 * This panel shows all the details of a given device.
 * @author Can Yumusak
 *
 */
public class DeviceDetailsPanel extends CustomComponent{
	
	private Device device;
	private VerticalLayout mainLayout;
	private HorizontalLayout deviceTypeHoriLayout;
	private HorizontalLayout ioDevHoriLayout;
	private TextField deviceTitle;
	private HWindow parent;

	/**
	 * default constructor
	 * @param dev the device to show
	 * @param parent an HWindow as it's parent
	 */
	public DeviceDetailsPanel(Device dev, HWindow parent) {
		this.device = dev;
		this.parent = parent;
		initGUI();
	}
	
	private void initGUI(){
		mainLayout = buildMainLayout();
		setCompositionRoot(mainLayout);
	}
	
	@AutoGenerated
	private VerticalLayout buildMainLayout() {
		// common part: create layout
		VerticalLayout layout = new VerticalLayout();
		layout.setImmediate(false);
		layout.setWidth("100.0%");
		layout.setHeight("-1");
		layout.setMargin(false);
		
		HorizontalLayout titleLayout = new HorizontalLayout();
		titleLayout.setImmediate(false);
		titleLayout.setWidth("-1");
		titleLayout.setHeight("50");
		titleLayout.setMargin(false);
		layout.addComponent(titleLayout);
		layout.setComponentAlignment(titleLayout, Alignment.TOP_CENTER);

		// deviceTitle
		deviceTitle = new TextField();
		deviceTitle.setImmediate(true);
		deviceTitle.setWidth("100%");
		deviceTitle.setHeight("-1px");
		deviceTitle.setValue(device.getName());
		deviceTitle.addListener(new Property.ValueChangeListener() {
			
			@Override
			public void valueChange(ValueChangeEvent event) {
				if(((String) event.getProperty().getValue()).length() > 1){
					device.rename((String) event.getProperty().getValue());
					parent.reloadTree();
				}
			}
		});
		titleLayout.addComponent(deviceTitle);
		titleLayout.setComponentAlignment(deviceTitle, Alignment.TOP_CENTER);

		ComboBox combobox = new ComboBox();
		String[] classes = DeviceFactory.getAvailableDevicetypes();
		for(String name : classes){
			combobox.addItem(name);
		}
		combobox.select(device.getClass().getSimpleName());
		combobox.addListener(new Property.ValueChangeListener() {
			
			@Override
			public void valueChange(ValueChangeEvent event) {
				setDeviceType((String) event.getProperty().getValue());
			}
		});
		combobox.setImmediate(true);
		
		
		deviceTypeHoriLayout = UIHelper.buildAttributePanel("Device Type", combobox);
		layout.addComponent(deviceTypeHoriLayout);
		layout.setComponentAlignment(deviceTypeHoriLayout,Alignment.TOP_CENTER);
		layout.setExpandRatio(deviceTypeHoriLayout, 1);
		
		ioDevHoriLayout = buildAttributePanel("IO Device", device.getType());
		layout.addComponent(ioDevHoriLayout);
		layout.setComponentAlignment(ioDevHoriLayout,Alignment.TOP_CENTER);
		layout.setExpandRatio(ioDevHoriLayout, 1);
		
		addDeviceDetails(DevicePanelManager.getDeviceDetails(device, this), layout);

		
		return layout;
	}
	
	private void setDeviceType(String type){
		device.setDeviceType(type);
		device = device.getServer().getDeviceManager().reloadDevice(device.getName());
		initGUI();
		
	}

	private HorizontalLayout buildAttributePanel(String attributeName, String value) {
		Label label = UIHelper.buildRichTextField("<b>"+value+"</b>");
		return UIHelper.buildAttributePanel(attributeName, label);
	}
	
	/**
	 * Reloads this page.
	 */
	public void reloadPage(){
		removeAllComponents();
		initGUI();
	}
	
	private void addDeviceDetails(List<DeviceDetailEntry> entries, VerticalLayout mainLayout){
		for(DeviceDetailEntry entry : entries){
			HorizontalLayout layout = UIHelper.buildAttributePanel(entry.caption, entry.component);
			mainLayout.addComponent(layout);
			mainLayout.setComponentAlignment(layout,Alignment.TOP_CENTER);
			mainLayout.setExpandRatio(layout, 1);
		}
	}
	
}
